A golf-ball-sized smoke capsule that detonates on sharp impact, releasing a dense cloud of opaque white smoke that fills approximately 25 cubic meters within two seconds. The SP-1 uses a binary chemical system — two chambers separated by a breakable membrane mix on impact, producing an exothermic reaction that generates a thick, non-toxic smoke with light-scattering particles that defeat standard and infrared optical systems. The cloud persists for twenty to forty seconds depending on air movement.

Crucible Industries adapted the SP-1 from military smoke-screen technology for the civilian self-defense market. The capsule is inert until impact — it can be carried in a pocket, dropped, or jostled without risk of accidental detonation. The impact threshold is calibrated to approximately 3G of sudden deceleration, meaning a firm throw at the ground or against a wall is sufficient, but dropping from pocket height is not. Each capsule is single-use and sold in packs of three for Φ45.

The SP-1 has become one of the most popular escape tools in GLMZ, valued for its simplicity and reliability. There is no aiming requirement, no activation sequence, and no skill involved — throw it at the ground and run in the other direction. Crucible's marketing slogan — 'Exit Stage Left' — has become common slang for escaping a dangerous situation.